Monitoring Storage Connector resources

Filesystems

Monitor each Storage Connector for local partitions mounted. The following items should be considered for monitoring.

Total size of the disk/partition.

Available space on the disk.

Percentage of space used on disk. Should not exceed 80%.

Percentage of inodes used on disk. Should not exceed 80%.

Disk Read/Write Ops. Completed read/write operations from/to all disks available to the instance in a specified period.

Disk Read/Write Bytes. Bytes read/write from/to all ephemeral disks available to the instance in a specified period.

System CPU

Each node should be monitored for the following:

Percentage of used CPU time. You should have a warning alert if the percentage of used CPU time is 70% or more during last 3 polling cycles. You should have a critical alert should the percentage of user CPU time is 85% or more during the last 3 polling cycles. Polling should be performed at least once a minute.

Percentage of CPU IO Wait. This shows the percentage of time that the CPU or CPUs were idle during which the system had an outstanding disk I/O request. Warning alert should be generated in case of percentage of CPU IO wait time is 50% or more during last 3 polling cycles. Critical alert should be generated in case of percentage of CPU IO wait time is 70% or more during last 3 polling cycles. Polling should be performed at least once a minute.

System Memory

Monitor the following memory parameters for each Storage Connector.

Percentage of Memory utilization. This reports only memory allocated by applications and the operating system, and excludes memory in cache and buffers

Memory used (Megabytes). This reports only memory allocated by applications and the operating system, and excludes memory in cache and buffers.

Memory available (Megabytes). This reports only memory allocated by applications and the operating system, and excludes memory in cache and buffers.

Percentage of Swap

Swap used (Megabytes)

You should have a warning alert if the percentage of Memory utilization is 70% or more during last 3 polling cycles. You should have a critical alert should the percentage of Memory utilization is 80% or more during last 3 polling cycles.

Storage Connector service

The syncp-storage process should be running on every VM. If you are at the systems, you can check its status as follows:

sudo service syncp-storage status

If it is down, restart it as follows:

sudo service syncp-storage start

You can also check that the Storage Connector service is accessible from your browser by entering the following command. If the service is accessible, a pong message appears in the browser.

http://<hostname_or_IP_address_of_storage_connector_server>:9000/ping

If you are not able to access the service using a browser then on each Storage Connector server type the following command. If the service is accessible, a pong message appears in the browser.